Home / 21,941.18-32,911.72-8,802.78

Finding the Fourth Proportional to 21,941.18, 32,911.72 and 8,802.78

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Solution

The fourth proportional to 21,941.18, 32,911.72 and 8,802.78 is: 13,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.18 : 32,911.72 = 8,802.78 : x
  2. Step 2: Convert to fraction form
    21,941.18/32,911.72 = 8,802.78/x
  3. Step 3: Cross multiply
    21,941.18x = 32,911.72 × 8,802.78
  4. Step 4: Simplify right side
    21,941.18x = 289,714,485.16
  5. Step 5: Solve for x
    x = 289,714,485.16/21,941.18
  6. Step 6: Final answer
    x = 13,204.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.